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At least 235 records · Page 13Linked to original sources
PubMed2002

4-MTA: a new synthetic drug on the dance scene.

4-MTA (p-methylthioamphetamine) is a new synthetic sulphur derivative of amphetamine that has been associated with six deaths since it was first identified in Europe in 1997. Sold as 'ecstasy' or 'Flatliners', the drug like MDMA is a potent serotonin releaser. Using a self-nominated sampling methodology we accessed over 1000 dance drug users through a magazine survey. Ten percent of respondents thought that they had used 4-MTA. Those with experience of 4-MTA tended to come from a sub-population of heavy 'ecstasy'-users. Responses to the effects of the drug were mixed, although about a quarter of those who believed that they had tried 4-MTA thought that they would use it again.

Adolescent↗
PubMed1994

Tarantism, dancing mania and demonopathy: the anthro-political aspects of 'mass psychogenic illness'.

This study questions the widely held assumption that the phenomenon known as mass psychogenic illness (MPI) exists per se in nature as a psychiatric disorder. Most MPI studies are problematical, being descriptive, retrospective investigations of specific incidents which conform to a set of pre-existing symptom criteria that are used to determine the presence of collective psychosomatic illness. Diagnoses are based upon subjective, ambiguous categories that reflect stereotypes of female normality which assume the presence of a transcultural disease or disorder entity, underemphasizing or ignoring the significance of episodes as culturally conditioned roles of social action. Examples of this bias include the mislabelling of dancing manias, tarantism and demonopathy in Europe since the Middle Ages as culture-specific variants of MPI. While 'victims' are typified as mentally disturbed females possessing abnormal personality characteristics who are exhibiting cathartic reactions to stress, it is argued that episodes may involve normal, rational people who possess unfamiliar conduct codes, world-views and political agendas that differ significantly from those of Western-trained investigators who often judge these illness behaviours independent of their local context and meanings.

Anthropology, Cultural↗
PubMed2000

Case report. Paraphimosis due to erotic dancing.

Paraphimosis usually develops when a tight foreskin is retracted over the glans penis for a prolonged period. Many esoteric aetiologies have been implicated in the development of paraphimosis including piercing the foreskin, Plasmodium falciparum infection, application of celadine juice to the foreskin, chancroid, pessaries and the implantation of pearls. We report the first two cases of paraphimosis developing during wining, an erotic dance native to Trinidad & Tobago.

Adolescent↗
PubMed1995

The effects of visual and auditory models on the learning of a rhythmical synchronization dance skill.

The purpose of this study was to investigate the effect of visual and auditory concurrent models on the acquisition of a rhythmical synchronization task. Subjects attempted to synchronize a series of dance steps to the beat of two auditory rhythms. Subjects performed five trial blocks in one of four practice conditions: (a) audio-visual (auditory rhythms combined with a visual model), (b) audio-auditory (auditory rhythms combined with an auditory model), (c) auditory only (auditory rhythms with no model), and (d) visual only (no auditory rhythms but exposure to a visual model). Rhythmical timing and synchronization accuracy served as the dependent variables. Results revealed no practice condition learning differences for rhythmical timing. For synchronization accuracy, the audio-auditory group produced significantly lower error scores at acquisition, but no differences were found at retention. Apparently, the availability of models created an information dependency that resulted in a decrease of performance and, consequently, no group differences in retention.

Adolescent↗
PubMed2000

Learning and remembering strategies of novice and advanced jazz dancers for skill level appropriate dance routines.

This study examined the influence of the challenge level of to-be-learned stimulus on learning strategies in novice and advanced dancers. In Study 1, skill-level appropriate dance routines were developed for novice and advanced jazz dancers. In Study 2, 8 novice and 9 advanced female jazz dancers attempted to learn and remember the two routines in mixed model factorial design, with one between-participants factor: skill level (novice or advanced) and two within-participants factors: routine (easy or difficult) and performance (immediate or delayed). Participants were interviewed regarding the strategies used to learn and remember the routines. Results indicated that advanced performers used atypical learning strategies for insufficiently challenging stimuli, which may reflect characteristics of the stimuli rather than the performer. The qualitative data indicate a clear preference of novice and advanced performers for spatial compatibility of stimuli and response.

Adolescent↗
PubMedDate not supplied

Mother-daughter differences in menarcheal age in adolescent girls attending national dance company schools and non-dancers.

A combination of genetic and environmental factors is thought to contribute to age of menarche. Adolescent athletes and dancers are much more likely to have a delayed menarche than are non-athletes. To examine the possible differential influence of heredity and environmental factors on menarcheal age, 350 adolescent dancers and non-dancers and their mothers were surveyed. The dancers had a later age of menarche than did the comparison group; their mothers did not differ with respect to menarcheal age, suggesting that delayed menarche in athletes is not solely due to genetic selection as inferred by maternal menarcheal age. Maternal menarcheal age was the best predictor of menarcheal age in the comparison sample, while leanness was in the dance sample.

Adolescent↗
PubMedDate not supplied

Effects of a modified dance-based exercise on cardiorespiratory fitness, psychological state and health status of persons with rheumatoid arthritis.

Cardiorespiratory function and exercise tolerance appear very limited in persons with rheumatoid arthritis (RA). Many studies have demonstrated that aerobic exercise training is beneficial to prevent physical deconditioning without inducing adverse effects on an individual's joints and general health. The present study was conducted to demonstrate that a dance-based exercise program is a safe and efficient activity to improve physical fitness and psychological state in persons with RA. A group of 19 persons (mean age, 49.3 +/- 13 yr) participated in a 12-wk exercise program (twice weekly), whereas 10 persons (mean age, 49.4 +/- 12 yr) served as controls. Health status, use of medication, joint pain and swelling, physical fitness, activity of daily living and psychological state were assessed at baseline, after the 12-wk training program and 6 mo after the end of the program. Exercise training induced a mean improvement of 13% in aerobic power, with the highest values reaching 40%. No significant changes were observed in joint status, even though the count of painful joints tended to decrease in the exercise group. Positive changes in depression, anxiety, fatigue and tension were observed after the 12-wk exercise program. These findings provide some evidences in favor of aerobic exercise in individuals with RA. Furthermore, it is of primary interest to note that a weight-bearing activity with limited ground impacts do not provoke short-term adverse effects on joint status. Further studies, however, are required to determine the long-term effect of weight-bearing exercise on the health status of individuals with RA.

Activities of Daily Living↗
PubMed1997

Jump distance of dance landings influencing internal joint forces: I. Axial forces.

Knowledge of the magnitude and rate of applying axial forces (AF) during actual dance movements is necessary for understanding the etiology of chronic injuries and osteoarthritis. The purpose of this study was to investigate the effect of jumping distance on component ankle and knee joint AFs generated during the landing phase of traveling jumps. Six female dancers performed 10 jumps each at 30, 60, and 90% maximum jump distance (JD) and 15 jumps ranging from 35 to 100% JD. A sagittal view of the right leg landing onto a force platform was filmed. Greater ground reaction force maxima, knee flexion, knee and ankle flexion velocity, tibial landing angle, net ankle and knee joint moment maxima, ankle and knee joint reaction AFs, and quadriceps AFs (QuadAF) peak magnitudes and rates of AF application (dFmax/dt) were observed (P < 0.05) at increased JD. The QuadAF was a more important determinant of knee AF than joint reaction AF. Increased quadriceps force was useful for accommodating impact forces but served to increase its contribution to Knee AF, particularly during the later portion of the impact phase. High impact situations create significant magnitudes (e.g., 14 BW) and dFmax/dt of muscle AFs which could contribute to excessive joint wear.

Adult↗
PubMed1997

Jump distance of dance landings influencing internal joint forces: II. Shear forces.

Little is known about shear loading patterns during dance movements. The purpose of the study was to investigate the effect of jumping distance (JD) on contributors of ankle and knee shear forces (SF) generated during the landing phase of traveling jumps. Six female dancers performed 10 trials each at 30, 60, and 90% maximum jump distance (JD) and 15 jumps ranging from 35 to 100% JD. A sagittal view of the right leg landing onto a force platform was filmed using a high-speed cine camera. Greater ankle and knee joint reaction shear forces (JRSF) and quadriceps SF (QuadSF) were observed (P < 0.05) at increased JD. Although the triceps surae SF (TriSurSF) also increased at greater JD for all but one participant, the effect on minimizing the increase in the ankle SF was minor. The peak QuadSF magnitude and rate of loading were always greater than the corresponding knee JRSF variables. However, the increased QuadSF that occurred at longer jumps led to increased knee SF for only half of the participants.

Ankle Injuries↗
PubMed1986

Injuries associated with break dancing.

Twelve patients were seen with different injuries associated with break dancing. Analysis of the injuries indicated that they were all potentially preventable. All the injuries occurred during unsupervised activity and without the use of proper surfaces and techniques.

Adolescent↗
PubMed2003

Medical problems related to recreational drug use at nocturnal dance parties.

During 'I love techno' (edition 2001), an indoor rave party attended by 37 000 people, data about medical problems (especially drug-related problems) were collected. To place these data in a wider perspective, a similar registration was done during 'De Nacht', a traditional New Year's Eve dance party held at the same location and attended by 12 000 people. Furthermore, a prospective study on the time course of the level of consciousness (Glasgow Coma Score) and blood concentrations of illicit drugs, especially gamma-hydroxybutyrate was set up. The results revealed that during 'I love techno' the incidence of medical problems was high (66.5/10 000 attendees), but not higher than during 'De Nacht' (70.0/10 000 attendees). At 'I love techno', however, mainly illicit drugs were used, more frequently leading to severe drug-related medical problems. The observations in patients with a drug-related medical problem who had taken gamma-hydroxybutyrate showed that for a given level of consciousness the gamma-hydroxybutyrate concentrations may show important differences, that the transition from coma (Glasgow Coma Score < or =7) to full recovery (Glasgow Coma Score 15) takes only 30-60 min (and only a small decrease in gamma-hydroxybutyrate concentrations), and that the time it takes before a comatose patient reaches the above-mentioned 'transition area' may be a few hours.

Adolescent↗
PubMed2005

Analysis for identification in amnesty bin samples from dance venues.

The analysis of unknown substances discarded in amnesty bins, first described by Ramsey et al, from a large central London club and 7 smaller clubs in Manchester, UK are described. The contents of the bins were collected between July 2003 and March 2004. Solid dosage formulations were identified using the TICTAC database, chemical tests, and GC-MS screening. Drugs that could not be readily identified were subjected to other analytical techniques. The goal was to document the current range of drugs available on the dance scene and compare the findings between the London club, which had been the subject of a previous survey, and Manchester clubs. More than 1000 tablets, capsules, and powder doses were discarded in the amnesty bins. Tablets containing only MDMA (ecstasy) were found to be >94% and >84% of the total in London and Manchester, respectively. Although the quantities of tablets and powders recovered were different between London and Manchester, the proportions of the drugs were remarkably similar. The most common drugs found in powders in London and Manchester respectively were cocaine (29%, 40%), amphetamine (25%, 26%), ketamine (19%, 20%), and MDMA (19%, 11%).

Adolescent↗
PubMed2005

Five-year trends in patterns of drug use among people who use stimulants in dance contexts in the United Kingdom.

AIMS: To describe and evaluate trends in the use of stimulant drugs over a 5-year period using an under-studied data collection method. DESIGN: Repeated-measures cross-sectional survey. SETTING AND PARTICIPANTS: Annual magazine-based survey targeting people who use stimulant drugs in dance contexts. MEASUREMENTS: Life-time use prevalence (ever used), age of first use, current use prevalence (any use within the last month) and extent of use within the last month (number of days used) for a range of stimulant drugs. Additional measures of quantity of ecstasy used were also collected. FINDINGS: Trends in life-time and current prevalence over time have been detected and comparisons made between different stimulant drugs. Evidence is obtained of broad stability in patterns of stimulant use in respect of age of first use and frequency of use among ongoing users. Despite an apparent reduction in the current prevalence of ecstasy use, the proportion of heavy users (usually >4 pills per session) has more than doubled between 1999 and 2003. CONCLUSIONS: This purposively sampled population study has yielded time trend data broadly consistent with other indicators, where they exist, and also has demonstrable potential to identify new drug trends. Further comparisons of purposive samples and randomly formed samples are needed.

Adolescent↗
PubMed1995

Representation and performance: reproduction of form and quality of movement in dance by eight- and 11-year-old novices.

This study examined the effects of age on the cognitive representations in modelling. A total of 48 eight- and 11-year-olds were asked to watch a dancer performing a ballet sequence of three steps in order to reproduce it. They were able to see the film as many times as they wanted. All subjects were novices to dance. Both quantitative (number of observations required to learn the sequence, number of steps executed) and qualitative (form and quality of the performance) factors were assessed. The results indicated an effect of age on the number of requested observations and on the number of subjects able to perform the entire movement series. The mean form scores did not differ significantly between the two groups, but the mean quality score was higher for the 11-year-olds. We also noted a great heterogeneity in the performances. The results are discussed in terms of the role of cognitive and motor factors in observational learning by age and of the possibilities that cognitive representations offer for coding the different properties of movement.

Age Factors↗
PubMed1996

Postexercise heart rates and pulse palpation as a means of determining exercising intensity in an aerobic dance class.

OBJECTIVE: To establish the accuracy of the traditional method of measuring the intensity of exercise in aerobic dance classes, that is, intermittent pulse palpation performed during a brief cessation of activity. METHODS: A short wave telemetry system was used to record heart rates during a class in a group of 12 healthy women aged 26 (SD 6) years. Subjects palpated their pulses for 10 s following high and low intensity exercise [78(8)% and 69(9)% of mean predicted maximum heart rate respectively]. Recorded exercising heart rates, averaged over 60 s preceding pulse palpation [ExHR(rec)], were compared with the recorded postexercise heart rates averaged over the 10 s palpation period [PostExHR(rec)] and with the palpated counts (PalpHR). Differences were assessed using Student's t test and Wilcoxon signed rank test. RESULTS: Differences between ExHR(rec) and PostExHR(rec) following high and low intensity exercise [3(6) beats.min-1 and 5(7) beats.min-1 respectively] were not significant. However, the wide variation between subjects means that a postexercise heart rate is unreliable as a measure of individual exercise intensity. PalpHR was significantly lower than ExHR(rec) (P < 0.01). Every individually palpated count underestimated the exercising heart rate (range 9 to 95 beats.min-1). CONCLUSIONS: While postexercise heart rate adequately represents the exercise heart rate for a group, the individual variation is too wide for this to be a useful measurement.

Adult↗
PubMed2004

MDMA (3,4-Methylenedioxymethamphetamine) or ecstasy: the neuropsychobiological implications of taking it at dances and raves.

MDMA (3,4-methylenedioxymethamphetamine) or 'ecstasy' is a ring-substituted amphetamine derivative, which is widely used as a recreational drug, most particularly at dances and raves. Around 80-95% of dancers/ravers report using ecstasy/MDMA, compared to 5-15% of young people in general. This paper will consider the possible contribution of stimulatory environmental conditions to the neuropsychobiological effects of MDMA. Animal research shows that heat and crowding potentiate the acute effects of MDMA. Social interaction and intravenous drug self-administration in laboratory rats are significantly enhanced when MDMA is given under hot ambient temperatures. Loud noise and physical activity can also contribute to the general overarousal. Furthermore, MDMA impairs homeostatic thermal control in rats, leading them to overheat in hot environments. The human implications of these findings are that the hot, noisy and overcrowded conditions at raves may be providing the ideal environment to heighten the acute drug response. In recreational users, the acute medical dangers of MDMA comprise a constellation of hyperthermia-related abreactions, which generally only occur when it has been taken in hot and crowded environments. MDMA is well established as a serotonergic neurotoxin in laboratory animals, but heat and overcrowding increase the degree of distal axon terminal loss. If this also occurs in humans, then the stimulatory environments of clubs and raves may heighten the likelihood of adverse neuropsychological sequelae in recreational ecstasy users. Consistent with this prediction, the extent of self-reported dancing/exercise when on MDMA has recently been shown to be associated with significantly more psychobiological problems afterwards.

Animals↗
PubMed2004

Gross-motor skill acquisition by preschool dance students under self-instruction procedures.

The effects of two training procedures--(a) modeling and praise and (b) self-instruction, modeling, and praise--on complex gross-motor chain acquisition for preschool dance class students were evaluated. Six girls participated in the study. A multiple baseline design across six gross-motor chains with a secondary group comparison for treatment order effects was used. Both procedures were effective in teaching the gross-motor chains. Nevertheless, for 4 of the 6 participants, the self-instruction procedure produced a faster acquisition rate in at least two of the three comparable pairs of gross-motor chains. Furthermore, very early in gross-motor chain acquisition, for five of the six gross-motor chains, the self-instruction condition was associated with faster response acquisition.

Child, Preschool↗
PubMed2006

Relative age effect revisited: findings from the dance domain.

The relative age effect is a worldwide phenomenon. While there is solid empirical evidence for the existence in sports like soccer and ice hockey, there are also some findings indicating the absence of the phenomenon. In an earlier study, no support was found with Dutch top-level athletes in table tennis and in volleyball. The explanation was that in athletic tasks which depend heavily on the technical ability (or motor skill) of the participant, a relative age effect will not be observed. In the present study this supposition was tested again with three samples of Dutch preprofessional dance students (overall number of subjects: 546). Again no support was obtained for the relative age effect. Therefore, a case is being built that the relative age effect is not an omnipresent phenomenon.

Adolescent↗